1105550543 has 4 divisors (see below), whose sum is σ = 1106988960. Its totient is φ = 1104112128.

The previous prime is 1105550533. The next prime is 1105550561. The reversal of 1105550543 is 3450555011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1105550543 - 2¹⁴ = 1105534159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105550533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718055 + ... + 719592.

It is an arithmetic number, because the mean of its divisors is an integer number (276747240).

Almost surely, 2^1105550543 is an apocalyptic number.

1105550543 is a deficient number, since it is larger than the sum of its proper divisors (1438417).

1105550543 is an equidigital number, since it uses as much as digits as its factorization.

1105550543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438416.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 1105550543 is about 33249.8201950026. The cubic root of 1105550543 is about 1034.0134805511.

The spelling of 1105550543 in words is "one billion, one hundred five million, five hundred fifty thousand, five hundred forty-three".